The Life of a Light Bulb Is Exponentially Distributed with a Mean

question 47

Multiple Choice

The life of a light bulb is exponentially distributed with a mean of 1,000 hours. What is the probability that the bulb will last more than 1,200 hours?

• A) .3012
• B) .3679
• C) .4345
• D) .6988

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Definitions:

Gamete-Specific

Refers to characteristics or factors that are unique to a particular type of gamete, such as sperm or ova, influencing fertilization and reproductive processes.

Phenotype

An observable trait; the trait that actually is seen.

Karyotype

A karyotype is the number and visual appearance of the chromosomes in the cell nuclei of an organism or species, used to look for chromosomal abnormalities.

Observable Trait

A characteristic or feature of an organism that can be seen or measured directly.